Global Patent Index - EP 3163718 A1

EP 3163718 A1 20170503 - BRUSHLESS MOTOR SYSTEM FOR POWER TOOLS

Title (en)

BRUSHLESS MOTOR SYSTEM FOR POWER TOOLS

Title (de)

BÜRSTENLOSES MOTORSYSTEM FÜR ELEKTROWERKZEUGE

Title (fr)

SYSTÈME DE MOTEUR SANS BALAI POUR OUTILS ÉLECTRIQUES

Publication

EP 3163718 A1 20170503 (EN)

Application

EP 16193931 A 20161014

Priority

US 201562241385 P 20151014

Abstract (en)

A power tool motor is provided including a stator assembly and a rotor assembly rotatably disposed within the stator assembly. The stator assembly includes: a generally-cylindrical lamination stack having a stator ring and stator teeth extending radially inwardly towards a center bore arranged to receive the rotor assembly therein; an end insulator disposed at an and of the lamination stack and having an outer ring and teeth portions extending radially inwardly from the outer ring towards a center of the end insulator; and stator windings wound around the stator teeth and the teeth portion of the end insulator. A generally cylindrical seal member is disposed to interface with an end of the stator, which includes a mating surface having indents configured to mate with ends of the stator windings or ends of the teeth portion of the end insulator to substantially seal respective gaps therebetween from entry of workpiece particulate.

IPC 8 full level

H02K 5/10 (2006.01); B25F 5/00 (2006.01); B25F 5/02 (2006.01); H02K 3/38 (2006.01); H02K 3/52 (2006.01); H02K 9/22 (2006.01); H02K 11/215 (2016.01); H02K 11/33 (2016.01); H02K 1/14 (2006.01); H02K 3/487 (2006.01); H02K 7/14 (2006.01)

CPC (source: EP US)

B24B 23/028 (2013.01 - EP US); B25F 5/008 (2013.01 - EP US); B25F 5/02 (2013.01 - EP US); H02K 1/146 (2013.01 - EP US); H02K 1/2706 (2013.01 - US); H02K 3/18 (2013.01 - US); H02K 3/34 (2013.01 - US); H02K 3/487 (2013.01 - EP US); H02K 3/522 (2013.01 - EP US); H02K 5/10 (2013.01 - EP US); H02K 5/207 (2021.01 - EP US); H02K 7/08 (2013.01 - US); H02K 7/116 (2013.01 - US); H02K 7/145 (2013.01 - EP US); H02K 9/04 (2013.01 - US); H02K 9/06 (2013.01 - EP US); H02K 9/227 (2021.01 - EP US); H02K 11/215 (2016.01 - EP US); H02K 11/33 (2016.01 - EP US); H02K 21/16 (2013.01 - EP US); H02K 3/38 (2013.01 - EP US); H02K 2203/09 (2013.01 - EP US); H02K 2203/12 (2013.01 - EP US); H02K 2213/03 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3160018 A1 20170426; EP 3160021 A1 20170426; EP 3163718 A1 20170503; EP 3163718 B1 20180926; EP 3166213 A2 20170510; EP 3166213 A3 20170802; EP 3166213 B1 20200415; US 10328566 B2 20190625; US 10328567 B2 20190625; US 10500708 B2 20191210; US 10786894 B2 20200929; US 11241781 B2 20220208; US 11583991 B2 20230221; US 11654543 B2 20230523; US 11691260 B2 20230704; US 11951603 B2 20240409; US 2017106521 A1 20170420; US 2017106522 A1 20170420; US 2017110945 A1 20170420; US 2017110946 A1 20170420; US 2020016734 A1 20200116; US 2022024016 A1 20220127; US 2022024017 A1 20220127; US 2022134530 A1 20220505; US 2023278187 A1 20230907

DOCDB simple family (application)

EP 16194017 A 20161014; EP 16193931 A 20161014; EP 16193934 A 20161014; EP 16194015 A 20161014; US 201615292568 A 20161013; US 201615292600 A 20161013; US 201615292639 A 20161013; US 201615292673 A 20161013; US 201916580424 A 20190924; US 202117495494 A 20211006; US 202117495517 A 20211006; US 202117495533 A 20211006; US 202318314352 A 20230509